I was once trying to create a video player since the format was not supported by the browsers today, so i started to download the video files from the server. Only to discover a bug in my code was trying to download a video file from the server. This was way to much for the server to handle and caused it to crash. People where running in the building to get the stream back up, i sat there silently and killing my browsers process. Since then i always test my request from local if they are okay before downloading a file from a server

My old boss used to deploy sometimes at the last second. I was about to walk out of the office (friday at around 5:30pm) when he said "Oh wait i wanted to deploy this website you've created" Before i could argue he deployed the website and ofcourse it broke in production..
This caused me to stay for another hour and a half in order to fix it...

When as JavaScript developer you need to do Java Android. And not the simple kind of tasks... I have 0 knowledge on the whole Android platform.. FML

When mysql_query gets called inside of a loop that is inside of a loop.. While the could've used a one liner mysql command...

Best of all they don't think that this doesn't effect performance...

You haven't any real issues untill you start on DRM.
That stuff i complete blackbox where when something goes wrong you are completely left in the dark?

Been debugging a whole day with a college without luck...

Tell PM that something isn't possible. Still puts in the todo list with high priority...

People that call themselves JavaScript developers but can't figure out how to update the DOM without using jQuery